x402basequality 0.30

Pay-per-call loan data endpoint on Base via x402, settled in USDC at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/loans/5

What it does

This endpoint at lowpaymentfee.com provides access to loan data (resource ID 5) via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with an exact-scheme challenge requiring up to 20,000 base units (0.02 USDC, i.e. two cents) per call.

The broader lowpaymentfee.com platform advertises a wide catalog of pay-per-call APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with no API keys, no rate limits, and no minimum commitments.

This specific endpoint (/api/v1/loans/5) is labeled "Premium API Access" in the x402 challenge but is not individually documented on the site's landing page, which focuses on the broader catalog. No OpenAPI schema, request/response examples, or detailed documentation were found during the crawl — the docs, API, pricing, and README pages all rendered only a "Connect wallet" prompt with no substantive content. As a result, the exact request body format and response structure for this loans endpoint are unknown.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-callloan-datajson-responseno-api-key

Use cases

  • —Retrieving loan record data on a per-call payment basis
  • —Integrating loan information into agent workflows without API key management
  • —Programmatic access to financial loan data settled via crypto micropayments

Fit

Best for

  • —Agents or apps that need on-demand loan data without subscription commitments
  • —Developers wanting keyless, pay-as-you-go API access on Base
  • —Crypto-native workflows that can settle USDC payments natively

Not for

  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —High-volume batch processing where per-call pricing may add up
  • —Non-crypto workflows that cannot handle x402 payment negotiation

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/loans/5 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/loans/5
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 402 challenge, confirming it exists and accepts payments. However, there is no OpenAPI schema, no request/response examples, and no meaningful documentation — the docs pages render only a wallet-connect prompt. The specific /api/v1/loans/5 path is not listed on the landing page catalog, making its purpose unclear beyond the generic 'Premium API Access' label.

Warnings

  • —No OpenAPI or schema documentation available for this endpoint
  • —The /api/v1/loans/5 path is not listed on the provider's landing page catalog — its exact purpose and data model are undocumented
  • —All docs/pricing/README pages returned only a 'Connect wallet' prompt with no substantive content
  • —Request body format and response structure are completely unknown

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:21:29Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-28

Agent access

JSONhttps://clawmart.sh/api/listings/ZFmbkJ
Pay-per-call loan data endpoint on Base via x402, settled in USDC at $0.02/request. — Clawmart · Clawmart